Fans of Kardashian know that she's been working hard on her body for the past year. The reality star revealed to ET in January that she had lost over 40 pounds and was prouder than ever of her "revenge body."

"My revenge is not towards one person," she shared, adding that stylists would often refuse to dress her. "It's more for everyone who was so cruel to me and really shunned me."

Find out how Kardashian lost the weight -- and how she's keeping it off -- in the video below.